Hazards

Question 1

Refers to anything that can cause disease in humans, regardless of its source

Answer 1

Biohazards

Question 2

This hazard include infectious agents, contaminated solutions, specimens or objects

Answer 2

Biohazard

Question 3

Chemicals that cause reversible inflammatory effects at the site of contact with living tissue, especially the skin, eyes and respiratory passages

Answer 3

Irritants

Question 4

Cause destruction or irreversible alterations when exposed to living tissue, or destroy certain inanimate surfaces

Answer 4

Corrosive chemical

Question 5

Cause allergic reactions in a substantial proportion of exposed subjects, not just in hypersensitive individual

Answer 5

Sensitizers

Question 6

Substances that induce tumors, not only in experimental animals but also in humans

Answer 6

Carcinogens

Question 7

Capable of causing death by ingestion, skin contact or inhalation at certain specified concentrations

Answer 7

Toxic materials

Question 8

Physical hazard

Answer 8

Combustibles
Flammable
Explosive
Oxidizers

Question 9

Substances that ignite at or above a certain temperature or flash point at which vapors will ignite in the presence of an ignition source

Answer 9

Combustible

Question 10

OSHA defines Flash point as

Answer 10

100F or 38C

Question 11

Department of Transportation defines flash point at

Answer 11

141F or 60.5C

Question 12

Substances that have flash point below the temperature specified by OSHA and DOT, but require especially designed storage rooms

Answer 12

Flammable

Question 13

Chemicals including picric acid. Solutions that may explode upon aging, which is why they should never be stored after use

Answer 13

Explosive

Question 14

Harmless by themselves but may initiate or promote combustion and present a serious fire risk when in contact with certain substances

Answer 14

Oxidizers

Question 15

Terms used to define the maximum allowable airborne concentration of a chemical to which worker may be exposed

Answer 15

PEL - permissible exposure limits
TLV-threshold limit values
OEL - occupational exposure limits

Question 16

Basic informations included in the label

Answer 16

Chemical name and all ingredients 
Manufacturer's name and address
Date purchased or made
Expiration date
Hazard warnings and safety procedures

Question 17

Best stored below countertop height to minimize the risk of bodily exposure in case a bottle is dropped and broken

Answer 17

Dangerous liquids

Question 18

Stored in plastic or plastic coated glass bottles

Answer 18

Dangerous reagents

Question 19

Never stored in a refrigerator or freezer unless these appliances are certified as suitable for an explosive atmosphere

Answer 19

Flammable liquids

Question 20

Most common disinfectant for biohazards

Answer 20

Bleach or sodium hypochlorite

Question 21

Disinfectant for acids

Answer 21

Baking soda

Question 22

Disinfectant for alkaline

Answer 22

Vinegar of 5%acetic acid

Question 23

Controlled range of water temperature

Answer 23

15-35C

Question 24

Affected eyes and skin should be rinsed for how long

Answer 24

15-30mins

Question 25

Infectious agent that can not be destroyed by complete penetration of alcohol

Answer 25

Prions

Question 26

Prions can cause

Answer 26

Creutzfeld Jakob disease Scrapie Mad cow disease

Question 27

Decontamination of tissue with prions

Answer 27

Immerse in formalin for 48hrs, treatment in concentrated formic acid for 1hr and additional formalin fixation for 48hrs

Question 28

Health hazards

Answer 28

``` Biohazards Irritants Corrosive chemicals Sensitizers Carcinogen Toxic materials ```